The verb has 4 meanings:
Meaning #1:
concentrate on a particular place or spot
Synonyms: localize, localise, focalize
Meaning #2:
bring into focus or alignment; to converge or cause to converge; of ideas or emotions
Synonyms: concenter, concentre, focalize, focus
Meaning #3:
become focussed or come into focus
Synonyms: focus, focalize
Meaning #4:
put into focus; as of an image on a screen; we cannot enjoy the movie"
Synonyms: focus, focalize, sharpen
